The oldest housing in Sussex County is in its boroughs and in Newton. Franklin Borough's median house is from 1955, Andover Borough's from 1954, and Sussex Borough's and Branchville's from 1948. In Newton, 37 percent of homes predate 1940. A chimney from those years has come through a long run of hard winters, and the courses above the roof take the worst of each.
Many of those chimneys still have a job. Two homes in three in Andover Borough heat with oil, and half in Franklin Borough. Out in Sandyston, 17 percent of homes burn wood, the highest share in the county. Oil soot, wood creosote and the moisture both carry all end up in the flue and in the mortar near the top.
Repointing needs firm brick around the joint. Once the top courses rock and the crown has cracked clear across, that is gone, and the lasting fix is to take the stack down to sound brick and rebuild it. The flue gets a close look while it is open.
We decide rebuild or repair standing at the top of the chimney. The photos show you exactly where the solid brick begins.